      <p> The following table is based on that given in WMO publication
no. 306 - Manual on Codes. The information is believed to be correct.
However, the definitions in the WMO manual may be liable to change over
time. If there is a difference between the information here and in the
WMO manual, the WMO manual is the definitive source. </p>
      <p>
      <table border="3">
        <caption>
        <center>
        <h2>WMO Code Table 6 - data representation type</h2>
        </center>
        </caption> <tbody>
          <tr>
            <th> Value</th>
            <th> Meaning</th>
            <th>gridType<br>
            </th>
            <th>Comment<br>
            </th>
          </tr>
          <tr>
            <td> 0</td>
            <td> Latitude/longitude grid - equidistant cylindrical or
Plate Carree projection projection</td>
            <td style="vertical-align: top;">regular_ll<br>
reduced_ll</td>
            <td style="vertical-align: top;">- regular_gg for
ksec2(17)=0<br>
- reduced_gg for ksec2(17)=1</td>
          </tr>
          <tr>
            <td> 1</td>
            <td> Mercator projection</td>
            <td style="vertical-align: top;">mercator</td>
            <td style="vertical-align: top;"><br>
            </td>
          </tr>
          <tr>
            <td> 2</td>
            <td> Gnomonic projection</td>
            <td style="vertical-align: top;"><br>
            </td>
            <td style="vertical-align: top;"><br>
            </td>
          </tr>
          <tr>
            <td> 3</td>
            <td> Lambert conformal, secant or tangent, conical
orbipolar, projection</td>
            <td style="vertical-align: top;">lambert</td>
            <td style="vertical-align: top;"><br>
            </td>
          </tr>
          <tr>
            <td> 4</td>
            <td> Gaussian latitude/longitude grid</td>
            <td style="vertical-align: top;">regular_gg<br>
reduced_gg<br>
            </td>
            <td style="vertical-align: top;">- regular_gg for
ksec2(17)=0<br>
- reduced_gg for ksec2(17)=1<br>
            </td>
          </tr>
          <tr>
            <td> 5</td>
            <td> Polar stereographic projection</td>
            <td style="vertical-align: top;">polar_stereographic</td>
            <td style="vertical-align: top;"><br>
            </td>
          </tr>
          <tr>
            <td> 6</td>
            <td> Universal Transverse Mercator (UTM) projection</td>
            <td style="vertical-align: top;">UTM</td>
            <td style="vertical-align: top;"><br>
            </td>
          </tr>
          <tr>
            <td> 7</td>
            <td> Simple polyconic projection</td>
            <td style="vertical-align: top;">simple_polyconic</td>
            <td style="vertical-align: top;"><br>
            </td>
          </tr>
          <tr>
            <td> 8</td>
            <td> Albers equal-area, secant or tangent, conic or
bi-polar, projection</td>
            <td style="vertical-align: top;"><br>
            </td>
            <td style="vertical-align: top;"><br>
            </td>
          </tr>
          <tr>
            <td> 9</td>
            <td> Miller's cylindrical projection</td>
            <td style="vertical-align: top;"><br>
            </td>
            <td style="vertical-align: top;"><br>
            </td>
          </tr>
          <tr>
            <td> 10</td>
            <td> Rotated latitude/longitude grid</td>
            <td style="vertical-align: top;">rotated_ll</td>
            <td style="vertical-align: top;"><br>
            </td>
          </tr>
          <tr>
            <td> 11- 12</td>
            <td> Reserved</td>
            <td style="vertical-align: top;"><br>
            </td>
            <td style="vertical-align: top;"><br>
            </td>
          </tr>
          <tr>
            <td> 13</td>
            <td> Oblique Lambert conformal, secant or tangent, conical
or bipolar, projection</td>
            <td style="vertical-align: top;"><br>
            </td>
            <td style="vertical-align: top;"><br>
            </td>
          </tr>
          <tr>
            <td> 14</td>
            <td> Rotated gaussian latitude/longitude grid</td>
            <td style="vertical-align: top;">rotated_gg</td>
            <td style="vertical-align: top;"><br>
            </td>
          </tr>
          <tr>
            <td> 15 - 19</td>
            <td> Reserved</td>
            <td style="vertical-align: top;"><br>
            </td>
            <td style="vertical-align: top;"><br>
            </td>
          </tr>
          <tr>
            <td> 20</td>
            <td> Stretched latitude/longitude grid</td>
            <td style="vertical-align: top;">stretched_ll</td>
            <td style="vertical-align: top;"><br>
            </td>
          </tr>
          <tr>
            <td> 21 - 23</td>
            <td> Reserved</td>
            <td style="vertical-align: top;"><br>
            </td>
            <td style="vertical-align: top;"><br>
            </td>
          </tr>
          <tr>
            <td> 24</td>
            <td> Stretched gaussian latitude/longitude grid</td>
            <td style="vertical-align: top;">stretched_gg</td>
            <td style="vertical-align: top;"><br>
            </td>
          </tr>
          <tr>
            <td> 25 - 29</td>
            <td> Reserved</td>
            <td style="vertical-align: top;"><br>
            </td>
            <td style="vertical-align: top;"><br>
            </td>
          </tr>
          <tr>
            <td> 30</td>
            <td> Stretched and rotated latitude/longitude grid</td>
            <td style="vertical-align: top;">stretched_rotated_ll</td>
            <td style="vertical-align: top;"><br>
            </td>
          </tr>
          <tr>
            <td> 31 - 33</td>
            <td> Reserved</td>
            <td style="vertical-align: top;"><br>
            </td>
            <td style="vertical-align: top;"><br>
            </td>
          </tr>
          <tr>
            <td> 34</td>
            <td> Stretched and rotated gaussian latitude/longitude grid</td>
            <td style="vertical-align: top;">stretched_rotated_gg</td>
            <td style="vertical-align: top;"><br>
            </td>
          </tr>
          <tr>
            <td> 35 - 49</td>
            <td> Reserved</td>
            <td style="vertical-align: top;"><br>
            </td>
            <td style="vertical-align: top;"><br>
            </td>
          </tr>
          <tr>
            <td> 50</td>
            <td> Spherical harmonic coefficients</td>
            <td style="vertical-align: top;">sh</td>
            <td style="vertical-align: top;"><br>
            </td>
          </tr>
          <tr>
            <td> 51 - 59</td>
            <td> Reserved</td>
            <td style="vertical-align: top;"><br>
            </td>
            <td style="vertical-align: top;"><br>
            </td>
          </tr>
          <tr>
            <td> 60</td>
            <td> Rotated spherical harmonic coefficients</td>
            <td style="vertical-align: top;">rotated_sh</td>
            <td style="vertical-align: top;"><br>
            </td>
          </tr>
          <tr>
            <td> 61 - 69</td>
            <td> Reserved</td>
            <td style="vertical-align: top;"><br>
            </td>
            <td style="vertical-align: top;"><br>
            </td>
          </tr>
          <tr>
            <td> 70</td>
            <td> Stretched spherical harmonic coefficients</td>
            <td style="vertical-align: top;">stretched_sh</td>
            <td style="vertical-align: top;"><br>
            </td>
          </tr>
          <tr>
            <td> 71 - 79</td>
            <td> Reserved</td>
            <td style="vertical-align: top;"><br>
            </td>
            <td style="vertical-align: top;"><br>
            </td>
          </tr>
          <tr>
            <td> 80</td>
            <td> Stretched and rotated spherical harmonic coefficients</td>
            <td style="vertical-align: top;">stretched_rotated_sh</td>
            <td style="vertical-align: top;"><br>
            </td>
          </tr>
          <tr>
            <td> 81 - 89</td>
            <td> Reserved</td>
            <td style="vertical-align: top;"><br>
            </td>
            <td style="vertical-align: top;"><br>
            </td>
          </tr>
          <tr>
            <td> 90</td>
            <td> Space view, perspective or orthographic</td>
            <td style="vertical-align: top;">space_view</td>
            <td style="vertical-align: top;"><br>
            </td>
          </tr>
          <tr>
            <td> 91 - 191</td>
            <td> Reserved</td>
            <td style="vertical-align: top;"><br>
            </td>
            <td style="vertical-align: top;"><br>
            </td>
          </tr>
          <tr>
            <td> 192</td>
            <td> ECMWF ocean data</td>
            <td style="vertical-align: top;"><br>
            </td>
            <td style="vertical-align: top;"><br>
            </td>
          </tr>
          <tr>
            <td> 193 - 254</td>
            <td> Reserved for local use</td>
            <td style="vertical-align: top;"><br>
            </td>
            <td style="vertical-align: top;"><br>
            </td>
          </tr>
        </tbody>
      </table>
